Cooking Device with Base-Mounted Swirler for Enhanced Ventilation
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Solution Overview
Problem
Existing cooking devices with hood functions face limitations in air suction performance due to long distances between fan motors and air intake, leading to inefficient contamination air removal, especially when installed above gas oven ranges, and pose challenges in installation, repair, and space utilization.
Innovation Solution
A cooking device with a ventilation apparatus featuring a swirler and a driving motor installed at the base, which forms a swirl to enhance air introduction and includes a movable member to block rising contaminated air, increasing the introduction area and exhaust performance while minimizing height and interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the fan motor assembly is installed at a distance from the opening part to accommodate the cooking device structure, then the device can be mounted above gas oven ranges, but the suction force is lost during transfer and suction performance is degraded
Solution Approach 1:
A movable guide member is introduced as an intermediary component between the opening part and the fan motor assembly. This guide member actively directs contaminated air toward the suction inlet, ensuring that even with the fan positioned at a distance for mounting flexibility, the suction performance is maintained by guiding the air flow path efficiently.
2Length of stationary object
If the driving part is installed inside the exhaust pipe to create a compact structure, then the device height is reduced, but the exhaust pipe length increases and installation position is limited
Solution Approach 1:
The driving part (fan motor assembly) is extracted from the exhaust pipe and positioned separately at the rear end of the cooking device. This extraction allows the exhaust pipe to be shorter and the fan to be mounted in a location that provides both compact height and flexible installation positions above gas oven ranges.
3Productivity
If the swirler is added to enhance air introduction performance, then the exhaust performance is improved, but the device complexity increases
Solution Approach 1:
A swirler with curved blades is incorporated into the ventilation apparatus. The curved structure of the swirler generates rotational air flow that enhances the suction effect and improves exhaust performance. Despite the added complexity, the curved design is integrated efficiently into the existing ventilation structure.
4Productivity
If the opening part is positioned to cover the front side heating part area, then contaminated air from the front is suctioned, but the device length increases
Solution Approach 1:
The opening part is positioned at the rear end of the cooking device rather than extending forward to cover the front heating area. This positional change in another dimension (from front coverage to rear positioning) allows the fan motor assembly to be located at the rear, maintaining compact device length while still effectively suctioning contaminated air from the front side heating part through the strategically positioned opening.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enhances air introduction and exhaust performance, reduces the device's height, ensures user safety, and prevents interference with internal structures, effectively addressing the limitations of previous technologies by forming a swirl under the swirler and using a movable member to block rising air.
Implementation Method 1
a swirler rotated so that the contaminated air is suctioned through the introduction port of the base, and having a plurality of wings
Data Source
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AI summary
A cooking device includes a main body having a cooking space for cooking food; a base disposed at a lower side of the main body, and comprising a ventilation apparatus for suctioning and discharging contaminated air, the ventilation apparatus being connected to the lower side of the main body and having an introduction port; a swirler rotated so that the contaminated air is suctioned through the introduction port of the base, and having a plurality of wings; an installation part provided at the base; and a driving motor installed at the installation part and configured to generate power for rotating the swirler.